Systems and methods for matching an end of discharge for multiple batteries
First Claim
1. A power system comprising:
- a first power converter and a second power converter;
a first battery having a time to end of discharge (EOD) and coupled to output a current to the first power converter;
a second battery having a time to EOD and coupled to output a current to the second power converter; and
a control circuit coupled to the first power converter and the second power converter, the control circuit configured to monitor the time to EOD of the first battery and the time to EOD of the second battery, and in response to the time to EOD of the first battery and the time to EOD of the second battery not being substantially equal, control the first power converter to adjust the current drawn from the first battery to change a rate of decrease of the time to EOD of the first battery.
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Abstract
A system includes a first power converter, a second power converter, a first battery having a time to end of discharge (EOD) and coupled to output a current to the first converter, a second battery having a time to EOD and coupled to output a current to the second converter, and a control circuit coupled to the first converter and the second converter. The control circuit is configured to monitor the times to EOD of the first battery and the second battery, and in response to the times to EOD of the first battery and the second battery not being substantially equal, control the first converter to adjust the current drawn from the first battery to change a rate of decrease of the time to EOD of the first battery. Other example systems and methods for substantially matching a time to EOD of a plurality of batteries are also disclosed.
24 Citations
20 Claims
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1. A power system comprising:
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a first power converter and a second power converter; a first battery having a time to end of discharge (EOD) and coupled to output a current to the first power converter; a second battery having a time to EOD and coupled to output a current to the second power converter; and a control circuit coupled to the first power converter and the second power converter, the control circuit configured to monitor the time to EOD of the first battery and the time to EOD of the second battery, and in response to the time to EOD of the first battery and the time to EOD of the second battery not being substantially equal, control the first power converter to adjust the current drawn from the first battery to change a rate of decrease of the time to EOD of the first battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for substantially matching a time to EOD of a plurality of batteries, the method comprising:
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determining a time to EOD of a first battery of the plurality of batteries coupled to provide a current to a first power converter; determining a time of EOD of a second battery of the plurality of batteries coupled to provide a current to a second power converter; and in response to the time to EOD of the first battery and the time to EOD of the second battery not being substantially equal, controlling the first power converter to adjust the current drawn from the first battery to change a rate of decrease of the time to EOD of the first battery. - View Dependent Claims (19, 20)
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Specification